graph2: Added post mutations. general: Did some cleaning.

graph2/schema/types/Post.gql

@@ -23,7 +23,7 @@ type Post {
 }
 
 # Input for the addPost mutation
-input AddPostInput {
+input PostAddInput {
   # The log's ID that this post should be a part of
   logId: String!
 
@@ -41,7 +41,7 @@ input AddPostInput {
 }
 
 # Input for the editPost mutation
-input EditPostInput {
+input PostEditInput {
   # The Post ID
   id: String!
 
@@ -59,7 +59,7 @@ input EditPostInput {
 }
 
 # Input for the movePost mutation
-input MovePostInput {
+input PostMoveInput {
   # The Post ID
   id: String!
 
@@ -67,6 +67,12 @@ input MovePostInput {
   toPosition: Int!
 }
 
+# Input for the removePost mutation
+input PostRemoveInput {
+  # The Post ID
+  id: String!
+}
+
 # Filter for posts query
 input PostsFilter {
   id: [String!]